Brush



Feb. 5 1924. 1,482,744

W. H. HEFFERNAN BRUSH Filed May 12 1921 WITNESS:

zgzwa ATTORNEY.

Patented Feb. 5, 1924.

UNITED STTES PATENT OFFICE.

WILLIAM H. HEFFERN'AN', OF NORTH ADAMS, MASSACHUSETTS, ASSIGNOR TO BE]?-.FERNAN BRUSH COMPANY, INC., OEADAMS, MASSACHUSETTS, A CORPORATION OFMASSACHUSETTS.

Application filed May 12,

To all whom it may concern:

Be it known that 1, WILLIAM H. HEFFER- NAN, a citizen of the UnitedStates of America, residing in North Adams, in the county of Berkshireand Commonwealth of Massachusetts, have invented certain new and usefulImprovements in Brushes, of which the following is a specification.

This invention relates to improvements in brushes, and is particularlydesigned for use in connection with revolving brushes which are used forcarrying dye from a suitable supply vat onto a roller, which in turn isused to transfer the color to the printing roller in the manufacture ofcloth and other fabrics.

An object of the invention is to provide a brush which is preferablyformed of paper that is suitably treated in order that it may beimpervious to the liquid dye. In operation these brushes are worn outvery rapidly, and it is desirable to have some means for replacing themwithout delaying the operation of the machine.

A further object of the invention, therefore, comprises aninterchangeable shaft which can be readily removed from the old, orwornout tubular brush, and inserted into a new tubular brush carryingmember, thus permitting the same shaft construction to be usedcontinuously. V

A further object is to provide suitable means for attaching this shafttothe brush carrying member.

Heretofore it has become a common practice in the manufacture of brushesfor the purpose described, to use a woodencylinder member having thebristles attached thereto and having bearing members or gudgeons whichare suitably secured to the ends of the wooden rollers. This practice isobjectionable, on account of the expense involved in replacing brusheswhen they are worn out,-since it requires not only the turning down orreconstruction of the wooden cylinder and the insertion of the bristlestherein, but the accurate centering of the bearing members therefor.

The present invention is therefore confined to the construction of thedetachable shaft which is to be used with tubular brush carryingcylinders.

These and other objects will appear in the V BRUSH.

1921. Serial No. 468,845,.

body of the specification, and will be par ticularly pointed out in'theclaims appended hereto.

Referring to thedrawings:

Fig. 1 is a longitudinal sectional view through the axis of the shaftshowing the tubular brush carrying cylinder in section,

also the means for detachably connecting the shaft to this cylinder.

Fig. 2 is an end view of Fig. 1 showing one of the bearing supportingplates, also the means for attaching one of the hearings to one of theplates, and the set screw for retaining the bearing in the plate.

Fig. 3 is a detail view of one of the detachable bearing stubs showingthe threads at its inner end, the bearing portion at its other end, andthe threaded flange which engages the threaded opening in thebearingplate.

Fig. 4 is an end view of Fig. 3.

Fig. 5 is an inside view of one of the bearing plates showing thethreaded opening therein and the flange which engages the end of thetubular brush carrying cylinder.

Fig. 6 is a detail view of one of the spiderv pieces for insertion inthe end of the tubular member of the brush, which member'is formed withlugs or projections for engaging' recesses in the ends of the tubularbrush cylinder.

-Fig. 7 is a detail sectional view on the line 7-7 of Fig. 6.

Fig. 8 is a detail view on the line 8 8 of Fig. 5, showing the threadedopening and the flanges of the bearing plates.

Fig. 9 is a view of one end of the tubular brush member, with thebearing or end plate removed, and showing one of the spiders locatedtherein.

Fig. 10 is a detail sectional view of one end of the driving shaft whichis inserted in the tubular member and showing the threaded thimble orbushing inserted therein. I

Fig. 11 is a detail view of the interiorly threaded thimble removed fromthe shaft.

Referring to the drawings in detail: 1 designates the brush carryingtubular member formed preferably of layers of paper suitably treated torender it'impervious to the dye solution in which the brush rotates. 2designates the bristles which are secured to the tubular member in anysuitable manner. Formed in the ends of the tubular member are the threerecesses 3, a, and 5v which are spaced 120 apart, asshoW-n in Fig. 9.These recesses are for the purpose of receiving the projections 3, 4;,and5 on the spider constructions 7 and 8, shown in Figs. 6 and 7. One ofthese spiders, 7, is adapted to be removed and inserted into either endof the tubular member, while the other spider construction, 8, isbrazed, or otherwise permanently secured to the tubular shaft member 6,as shown at the right end of Fig. 1. These spider constructions areformed with cylindrical parts 7 and 8 which enter the openilng 1 in thetubular member 1, as shown in ocated Within the opposite ends of thetubular member 6 are the interiorly thread ed thimbles or bushingmembers 9 and 10, shown in Figs. 10 and 11. 11 and 12 indicate bearingreceiving plates that are located on the opposite ends of the tubularmember 1. These members are formed with flanges 11 and 12 which engagethe annular recesses 1' and 2 at the ends of the mem- 10 shown in Figs10 and 11, and also in the assembled view Fig. 1. It is of courseobvious that the threads on the oppositely located members 15 and 15'should have one right andthe other left hand threads.

For the purpose of rigidly securing the members 15 and 15 to the endbearing plates 11 and 12 a set screw 19 is employed in each plate, asshown in Fig. 2, which engages a recess 19 in the flange 17. 20indicates a se screw located in the end bearing. plates 11 and 12 andwhich engages the outer ends or edges of the spider members 7 and 8, asshown in Fig. 1 at the opposite ends of the same.

It is understood that the brush is driven by attaching a suitable drivepulley 21 on the end of the bearing member 15, and securing the samethereto by the nut 22. For the purpose of transmitting rotary motion ofthe tubular shaftli to the tubular memher 1', a keyway construction 23is employed between the tubular member 6 and the spider construction 7at the left end of the brush.

The device is assembled as follows: The loose and removable spider 7 isinserted into either end of the member 1, the flangepart entering theopening 1 of the tubular member 1. The lugs 3', e, and 5 of the spiderenter the openings 3, 4, and 5 in the end of themember 1 (see Fig. 9).The tubularshaft member 61s inserted in the member 1 and the keywaymembers 23 thereon and in the spider are made to engage.

The plates 11 and 12 are then placed on the ends of the member 1 bythreading the part 18 of the members 15 and 15 into the interiorlythreaded bushings or thimbles 9.

or 10. The set screws 20 are then turned down against the ends of thespiders. For the purpose of forming'a water tight joint between theflanges 11 and 12" of the bearing members 11 and 12 and the ends of thetubular member 1, a packing ring or gasket 241 is employed (seeFig. 1).

From this construction it will be seen that the tubular shalt'tmember 6and bearing plates 11 and 12, the spiders 7 and 8, may be readilyremoved when the bristles 2 are worn out, and the same inserted in a newtubular memberwithout requiring the machine to be idle but a-s'horttime.

It is to be understood that the opposite ends of the tubular member 1are formed with recesses 3, 4, and 5 that are equally spaced at 120apart to receive the loose and removable spider 7' or the fixed one- 8.It is also to be understood that" the spider 8 is-permanently secured toone endofthe tubular shaft member 6, as stated, so that when this memberis inserted inthe tubular member 1 the lugs or projections of the spiderwill enter the recesses or openings 3, 4:, and

What I claim is:

1. In a device of the kind described, a detachable sliai tj support fora brush or the like, comprising in combination a bristle carrying part,a shaft member, a spider secured to one end of said member, a secondspider designed to have separable engagement with theother end of saidmember and interlocking engagement with the bristle carrying part of thebrush, aud'detachable bearing devices connected to the shaft member,whereby when the shaft is rotated the brush will also be rotated.

2. Ina device of the kind described, a bristle carrying member, thecombination of a shaft member designed to pass through said member, adevice secured at oneend'or' the shaft member and formed with projections to engage the bristle carrying member, asecond device at the otherend of the shaft member for engaging the bristle carrying member, andbearing members having detachable connection witheach of said devicesfor rotatably supporting the shaft.

3. In a device of the kinddescribed, comprising in combination a bristlecarrying member, a shaft member designed to extend through said memberand having. threads at each of its ends, plate members having aprojection for engaging the ends of the bristle carrying member andformed with a threaded opening, bearing members formed with threads forengaging the threads of the shaft member and a threaded part forentering the threaded opening in the plate members, and means forsecuring the bear-- ing members in the plate member.

4-. In a device of the kind described, the combination, of a bristlecarrying member, a tubular shaft member extending through the saidmember, plates at the ends of said member having threaded openingstherethrough, threaded bearing parts for supporting the shaft member andlocated in the threaded openings f the plates, and means for securingthe parts in the openings.

5. In a brush construction, the combination, of a bristle carryingmember, of a shaft. therefor, means for attaching the shaft to saidmember to permit its being separable therefrom, said means includingdevices located Within the ends of the bristle carrying member,plate-like members for connecting the shaft to the bristle carryingmember, pro]ect1ons on the devices and engaging said bristle carryingmember for driving said member When the shaft is rotated.

6. In a. revolvable brush construction, a bristle carrying member, atubular shaft, means for detachably connecting the tubular shaftthereto, said means including bearing devices for supporting the brushand having threads on their inner ends, and threaded into the ends ofthe shaft, and a threaded part between its ends, plates formed withthreaded openings to receive the threads of the bearing devices whichare located be tween their ends for supporting the bearing devices andsaid plates engaging the bristle carrying member.

7. In a detachable shaft construction for revolving brushes, a bristlecarrying member, a tubular shaft member to which said member isconnected, the bristle carrying member having recesses in the endsthereof, spider devices engaging the recesses of the bristle carryingmembers and the ends of the shaft, and bearing means connected to theshaft and the spider devices for supporting the same.

VILLIAM H. HEFFERNAN.

